Question

In the following reaction, how many liters of carbon dioxide will be produced if 250 liters of oxygen is used in the combustion of sucrose, given that both gases are at STP?
C12H22O11 + 12O2 d 12CO2 + 11H2O

Answer 1

C12H22O11 + 12O2 -> 12CO2 + 11H2O


By the stochiometry of the reaction you have that 12 moles of O2 will react with one mole of sucrose to produce 12 moles of CO2 and 11 moles of water. Then for each mole of O2, one mole of CO2 will be produce. 1:1

Because the volume of the gas is independent of the nature of the gas one mole of any gas at the same condition will have the same volume that one mole of any other gas at the same conditions.

For this particular reaction and because the gases are in the same conditions the volume of the CO2 produced will be equal to the volume of the O2 consumed in the reaction.